C111112111133131121133133313331333133313331312111133133313331123313222221   >>    C11111211113313112113313331333133313331333131211113313331333112331322222   <<    C111112111133131121133133313331333133313331312111133133313331123313222223   >>      C111112111133131121133133313331333133313331312111133133313331123313222222   >>